SEC Filings

The changes in the carrying amount of intangible assets, net, for the six months ended June 30, 2017, are as follows:

PrecisionBearingComponentsGroup

AutocamPrecisionComponentsGroup

PrecisionEngineeredProductsGroup

Total

Balance as of December 31, 2016

$

1,718

$

42,928

$

211,335

$

255,981

Amortization

(104

)

(1,748

)

(9,933

)

(11,785

)

Currency impacts

70

(2

)



68

Balance as of June 30, 2017

$

1,684

$

41,178

$

201,402

$

244,264

Note 8. Shared-Based Compensation

Share-based compensation expense during the three and six months ended June 30, 2017 and 2016, consisted of the following amounts:

Three Months Ended

Six Months Ended

June 30,

June 30,

2017

2016

2017

2016

Stock options

$

194

$

292

$

575

$

494

Restricted stock

395

710

855

1,358

Performance share units

477

482

788

633

Share-based compensation

$

1,066

$

1,484

$

2,218

$

2,485

Stock Options

During the
six months ended June 30, 2017, we granted 125,700 option awards to officers and certain other key employees. The weighted average grant date fair value of options granted during the six months ended June 30, 2017, was $11.84 per share.
The fair value of our options cannot be determined by market value, because our options are not traded in an open market. Accordingly, we utilized the Black Scholes financial pricing model to estimate the fair value. The weighted average
assumptions relevant to determining the fair value of the 2017 stock option grants are below: